.body {
    .mainleft {
        .game {
            width: 700px;
            height: 450px;
            background: #000;
            position: relative;

            .gamebtn {
                position: absolute;
                top: 10px;
                left: 500px;

            }

            .main {

                position: absolute;
                top: 10px;
                left: 50px;
                width: 420px;
                height: 420px;
                background: rgb(153, 148, 148);
                border: #f3b98ffc solid 10px;

                span {
                    display: inline-block;
                    width: 78px;
                    height: 78px;
                    position: absolute;
                    background-image: url(../img/游戏/4.png);
                    background-size: 400px 400px;
                    text-align: center;
                    line-height: 100px;
                    border: rgb(192, 190, 190) solid 1px;
                    font-size: 24px;
                    color: red;
                }
            }
        }

    }

}



button {
    width: 80px;
    height: 40px;
    font-size: 16px;
}